Quick Answer. Depending on the species, catfish can live from eight to 20 years though the Mekong giant catfish lives more than 60 years. Almost 3,000 species of catfish have been catalogued throughout the world, but it is thought that as many as 4,500 exist. The Mekong giant catfish is the largest species of catfish.
Collagen, a protein, supports and your body's tissues and, literally, keeps your body from falling apart. Collagen is the primary component of the body's connective tissue. About 80% of the dermis -- the part of your skin that's under the epidermis (outer layer) -- is collagen.Collagen gives your skin strength.ollagen and elastin are fibers that make up the supporting structure of the skin. Collagen gives skin its firmness while elastin keeps skin tight. Both of these fibers are plentiful in young skin and start to break down with natural aging and as a result of sun exposure.
Collagen Synthesis. Collagen is created by fibroblasts, which are specialized skin cells located in the dermis. Fibroblasts also produce other skin structural proteins such as elastin (a protein which gives the skin its ability to snap back) and glucosaminoglycans (GAGs).GAGs make up the ground substance that keeps the dermis hydrated.ollagen is the body's major structural protein composed of three protein chains wound together in a tight triple helix. This unique structure gives collagen a greater tensile strength than steel. Approximately 33 percent of the protein in the body is collagen.